Non-linear shear strength reduction technique in slope stability calculation |
| |
| Authors: | Wenxi Fu Yi Liao |
| |
| Institution: | State Key Laboratory of Hydraulic and Mountain River Engineering, School of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China |
| |
| Abstract: | To exactly implement the non-linear Hoek–Brown shear strength reduction in slope stability calculations, three aspects of the problem are considered. Firstly, the normal and shear stress relationship of the generalized Hoek–Brown criterion (2002 edition) is derived by introducing the Mohr–Coulomb instantaneous friction angle as a variable. Secondly, the instantaneous Mohr–Coulomb friction angle and cohesive strength are derived for a micro-unit at a given stress state and they can be used to describe the shear strength of the rock mass under different stress states. Finally, the implementation of the non-linear shear strength reduction is described and a slope example is selected to verify our method. This technique can be also applied to other non-linear failure criteria. |
| |
| Keywords: | Hoek&ndash Brown criterion Mohr&ndash Coulomb criterion Non-linear shear strength reduction Slope stability |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
